Panel element for assembling panel with flat back side and curved front side, has cavity formed in one length edge, and section in opposite length edge in which wedge shaped groove can be cut out

摘要

A cavity (8) is formed in one of the element length edges (5) and a sawing section (12) in the opposite length edge (6) forms a flange section (18) that can be received by a cavity in an adjacent element (1') after a groove (16) with a wedge-shaped cross-section has been formed in the sawing section. One of the cavity walls (9) abutting the groove has its form adapted to the particular contours of the curved front side (4) of the adjacent element.